org.apache.jasper.JasperException: Unable to compile class for JSP: 

An error occurred at line: 14 in the jsp file: /doctor.jsp
Invalid character constant
11:     Connection con=DriverManager.getConnection("jdbc:mysql://localhost:3306/phs", "root", "root");
12:     Statement s=con.createStatement();
13:     
14:            ResultSet rs=s.executeUpdate("insert into patient(prescription,treatment) values('"+slip+'",'"+treaty+"') where id='"+pid+"'");
15:           int count=0;
16:           while(rs.next())
17:           {
///////////@@@@the above mentioneed is error and code is as follows



<%@ page import="java.sql.*,javax.sql.*" %>
<%@ page import="java.util.*, java.lang.*" %>


  <% 
try{
String pid=request.getParameter("id");
String treaty=request.getParameter("treat");
String slip=request.getParameter("pres");
 Class.forName("com.mysql.jdbc.Driver");
    Connection con=DriverManager.getConnection("jdbc:mysql://localhost:3306/phs", "root", "root");
    Statement s=con.createStatement();

           ResultSet rs=s.executeUpdate("insert into patient(prescription,treatment) values('"+slip+'",'"+treaty+"') where id='"+pid+"'");
          int count=0;
          while(rs.next())
          {

                 out.println("PAtient record updated");
          }


    }
    catch (Exception e){
    out.println(e);
    }

%>